Danger at Ocean Deep

February 3, 1966

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Thunderbirds - S1 - E19

When the Ocean Pioneer tanker inexplicably explodes, Brains investigates the cause. With some help from Lady Penelope, he discovers it to be a chemical reaction between the cargo of liquid Alsterene and OD60, which is found in the sea. International Rescue set out to save the crew of the ill-fated Ocean Pioneer II.

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Thunderbirds: Season 1 - 26 Episode s

1x1 - Trapped in the Sky
September 30, 1965
The Fireflash, on its maiden flight from London to Tokyo, is sabotaged by the Hood, a criminal who has learned of the formation of International Rescue, and is unable to land. The Hood's attack is intended to draw out International Rescue so he can record secrets of its machinery for sale to the highest bidder, an attempt thwarted by the intervention of the organization's London Agent.
1x2 - Pit of Peril
October 7, 1965
A 500-ton U.S. Army walker, Sidewinder, falls into a pit during testing and International Rescue are called to save the crew trapped inside.
1x3 - The Perils of Penelope
October 14, 1965
Lady Penelope goes on the trail of a kidnapped scientist, only to find herself in mortal danger at the hands of a megalomaniac determined to exploit the expert's work to his advantage.
1x4 - Terror in New York City
October 21, 1965
While returning from a mission, Thunderbird 2 is seriously damaged when it comes under attack from a new, high-speed U.S. Navy strike vessel, the U.S.N. Sentinel. After an operation to move the Empire State Building disastrously ends in the tower's complete collapse, Jeff asks that Thunderbird 4 be transported onboard the same ship to the mouth of an underground river to reach a reporter and his cameraman who are trapped beneath the wreckage.
1x5 - Edge of Impact
October 28, 1965
The Hood sabotages the Red Arrow aircraft programme. One of the planes crashes into the TV Tower in England during a brutal rain storm, and International Rescue is summoned to save the engineers inside the tower before it collapses; making their job trickier apart from the driving rain and winds at the site is that the Red Arrow's director, a long time friend of Jeff, is fired from the project and stays at Tracy Island, forcing the Tracys to draw him away and thus remain oblivious to International Rescue's existence.
1x6 - Day of Disaster
November 4, 1965
The Allington Bridge collapses while a space rocket is being transported over it, trapping the rocket on the riverbed and inadvertently initiating its automatic countdown. International Rescue is called upon to save the crew before the rocket launches.
1x7 - 30 Minutes After Noon
November 11, 1965
The Erdman Gang has developed an ingenious technique of having their work carried out – an explosive bracelet that can be removed only at the designated target. A secret agent's attempt to infiltrate the organisation backfires as he is left trapped in a plutonium store. International Rescue face a race against time to prevent a massive nuclear explosion.
1x8 - Desperate Intruder
November 18, 1965
Brains and Tin-Tin set off on an expedition to retrieve sunken treasure from Lake Anasta. The Hood has also set his sights on the riches and plans to put both Brains and Tin-Tin in grave peril.
1x9 - End of the Road
November 25, 1965
International Rescue's security is jeopardised when Tin-Tin's close friend Eddie Houseman, who recently visited Tracy Island, takes drastic action to save his road-construction company's threatened contract by planting explosives to tear open a jungle mountainside, and the ensuing chaos leaves him trapped on a cliffside in a truck with another case of explosives on board.
1x10 - The Uninvited
December 2, 1965
While returning to base, Scott is attacked by mysterious fighter aircraft and shot down over the Sahara. He is discovered by two archaeologists, who send him on his way, only to find themselves entombed within the lost Pyramid of Khamandides.
1x11 - Sun Probe
December 9, 1965
The Sun Probe rocket and its crew are locked in a collision course with the Sun, prompting the launching of Thunderbird 3 – but International Rescue itself requires saving when Thunderbird 3 is unable to escape the Sun's gravitational pull.
1x12 - Operation Crash-Dive
December 16, 1965
A series of unexplained Fireflash airliner disappearances sees Thunderbird 4 being called to rescue a crew stranded on the ocean floor. International Rescue then volunteer its services in helping to diagnose the cause of the mechanical fault.
1x13 - Vault of Death
December 23, 1965
During the installation of a new, airtight security vault at the Bank of England, one of the employees is accidentally locked inside, and International Rescue must come to his rescue before the air is extracted.
1x14 - The Mighty Atom
December 30, 1965
The Hood plans to corner the Thunderbirds vehicles by drawing them out to an emergency at an atomic irrigation plant in the Sahara, then photographing them with a miniature camera disguised as a mouse.
1x15 - City of Fire
January 6, 1966
The world's tallest tower catches fire following an explosion in the car park and International Rescue are called to rescue a family trapped in the basement, which they can accomplish only with an experimental cutting gas ("Oxyhydnite") that previously rendered Scott and Virgil Tracy unconscious during testing.
1x16 - The Imposters
January 13, 1966
A gang of criminals masquerade as International Rescue to conceal their theft of top-secret military plans. The ensuing worldwide manhunt for International Rescue leaves the organisation powerless to operate in a rescue situation until its name is vindicated, just as a member of a manned reconnaissance satellite is suddenly trapped in space while trying to repair the station.
1x17 - The Man from M.I.5
January 20, 1966
A criminal organisation steals classified plans. Working in conjunction with a British Secret Service agent, Lady Penelope must recover the material to save the world from total destruction.
1x18 - Cry Wolf
January 27, 1966
Two Australian boys are playing their favourite game — "International Rescue" — when their "distress" call is picked up by John Tracy on Thunderbird 5. After a tour of Tracy Island, and a warning not to use their radio again, the brothers are returned home. The Hood then tricks the boys into an old mine shaft before stealing secret photographs from their government agent father. This time the brothers' SOS is real, but International Rescue refuses to believe them.
1x19 - Danger at Ocean Deep
February 3, 1966
When the Ocean Pioneer tanker inexplicably explodes, Brains investigates the cause. With some help from Lady Penelope, he discovers it to be a chemical reaction between the cargo of liquid Alsterene and OD60, which is found in the sea. International Rescue set out to save the crew of the ill-fated Ocean Pioneer II.
1x20 - Move – And You're Dead
February 10, 1966
After Alan Tracy returns to motor-racing, his rivals decide to remove the competition by rigging a bridge with a movement-sensitive bomb, which will explode the moment that Alan and Grandma Tracy try to escape. (Some of this episode is narrated in flashback.)
1x21 - The Duchess Assignment
February 17, 1966
The Duchess of Royston has fallen on hard times, leading her friend Lady Penelope to enlist Jeff's help. The Duchess and her one asset – the painting Portrait of a Gazelle, by Braquasso – fall into criminal hands and it is up to International Rescue to save both.
1x22 - Brink of Disaster
February 24, 1966
An unscrupulous investor attempts to recruit Lady Penelope into funding his automated, cross-country monorail building project. Jeff volunteers to ride the prototype, but he, Brains, and Tin-Tin find themselves trapped onboard, and with no possibility of escape, when it is discovered that the monorail train is speeding towards a stricken bridge.
1x23 - Attack of the Alligators!
March 10, 1966
When a new growth hormone is accidentally released into a South American river, a house is besieged by alligators – now many times their normal size. International Rescue must subdue the reptiles and save the house's occupants.
1x24 - Martian Invasion
March 17, 1966
The Hood arranges for a mishap with explosives during a film shoot, leaving two of the actors sealed inside a cave. When International Rescue arrive the ensuing rescue is surreptitiously recorded by the Hood, and when the Tracys realize they've been set up a tense chase through the nearby desert ensues.
1x25 - The Cham-Cham
March 24, 1966
When aircraft are shot down during live broadcasts of a hit song, International Rescue suspects foul play. Tin-Tin and Lady Penelope (posing as the singer Wanda Lamour) investigate, but are left in mortal danger when a ski lift is sabotaged and speeds out of control down a mammoth mountain slide in the Alps.
1x26 - Security Hazard
March 31, 1966
Clip show episode: the Tracy family cannot help but reminisce about their many successful missions after a young boy infiltrates the island. They are nevertheless burdened by the problem that the boy knows their identity and the location of their base – until Jeff realises that they can use the boy's dreams to their own advantage. Includes clips from "End of the Road", "Sun Probe", "Trapped in the Sky" and "Day of Disaster".

Danger at Ocean Deep

Thunderbirds - S1 - E19

Thunderbirds: Season 1 - 26 Episode s

1x1 - Trapped in the Sky

1x2 - Pit of Peril

1x3 - The Perils of Penelope

1x4 - Terror in New York City

1x5 - Edge of Impact

1x6 - Day of Disaster

1x7 - 30 Minutes After Noon

1x8 - Desperate Intruder

1x9 - End of the Road

1x10 - The Uninvited

1x11 - Sun Probe

1x12 - Operation Crash-Dive

1x13 - Vault of Death

1x14 - The Mighty Atom

1x15 - City of Fire

1x16 - The Imposters

1x17 - The Man from M.I.5

1x18 - Cry Wolf

1x19 - Danger at Ocean Deep

1x20 - Move – And You're Dead

1x21 - The Duchess Assignment

1x22 - Brink of Disaster

1x23 - Attack of the Alligators!

1x24 - Martian Invasion

1x25 - The Cham-Cham

1x26 - Security Hazard

Thunderbirds: All seasons

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S1: Season 1

S2: Season 2